Chair seat



FIG. 1 is a perspective view of a chair seat showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a left side perspective view, the right side being a mirror image thereof.

FIGS. 2 and 6 have be shown on an enlarged scale with respect to FIG. 1.

The broken lines shown at the bottom edge of the chair seat represent the boundary and form no part of the claimed design. All other broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a chair seat, as shown and described. 